Question

I suspect this is more simple than I think!

I can create a list of Func and then add to it

var x = new List<Func<IBQCustomer, string>>();
x.Add(c => c.FullName);

Bu how to I add an extra parameter into the Func? When I try I get an error

var y = new List<Func<IBQCustomer, OrderByDirection, string>>();
y.Add(...);

Is this possible?

I am aiming to build up a list of properties and what to do with them

---

Error:

y.Add(c => c.FullName, OrderByDirection.Asc);
No overload for Add that takes 2 arguments

Answer 1

‘OrderByDirection’ enumeration is not a function argument? In this case you could use something like:

var y = new List<Tuple<Func<IBQCustomer, string>, OrderByDirection>>();
y.Add(new Tuple<Func<IBQCustomer, string>, OrderByDirection>(c => c.FullName, OrderByDirection.Asc));

Of course you could also use a custom class instead of ‘Tuple<>’:

class MyClass
{
    public Func<IBQCustomer, string> Function;
    public OrderByDirection Direction;
}

Or are you maybe writing the lambda expression wrong? This should work:

var y = new List<Func<IBQCustomer, OrderByDirection, string>>();
y.Add((c, d) => c.FullName);